Category "image"

CV2: "[ WARN:0] terminating async callback" when attempting to take a picture

I am trying to take a picture from the defualt carmera with python, to do this I am using openCV (import cv2 from python shell). However, when I attempt to disa

Import image dynamically in React component

I have an Articles component that shows a blog page with listed articles. render() { const articles = { ...this.state.articles } const art

Get PDF images in an array using PDFIUM to edit them

I am trying to write down a method to get all PDF images from a FPDF_DOCUMENT object to perform actions on them and return back theFPDF_DOCUMENT with the images

Rotating an image by x angle in c

I am rotating the image by x(45 degres) angle, But I am getting some black spots in the rotated image. How to avoid those black spots!! The logic I have used

How can I use Validator in perform_create to limit image upload size for Django Rest Framework?

In my view, I'm able to restrict an image's resolution to a specific range of width and height, but I don't know how to use this very method to also restrict an

Convert ImageBitmap to Blob

I'm using createImageBitmap() which creates an ImageBitmap file. How do I convert this file to a blob or ideally PNG so I can upload?

AttributeError: module 'torch' has no attribute 'rfft' with PyTorch

I am getting an error using a code that should work according to the documentation. The goal is to calculate the Feature Similarity Index Measure (FSIM) using t

ImageView.setBackgroundResource

Attempt to invoke virtual method 'void android.widget.ImageView.setBackgroundResource(int)' on a null object reference at com.Adapter.MessageAdapter.onBindView

clicker game various images

I am making a ui for clicker game and its supposed to change images on certain values that the price and popularity are at but the images seem to be stacking on

How to know when image preloading is done with javascript?

Per this extremely popular question, preloading images with javascript is as easy as: function preloadImage(url) { var img=new Image(); img.src=url; } But

Image Processing in Python from Unity Hololens Development

So I have an image processing algorithm doing crack detection written in Python and I want to have this work on the Hololens (in Unity). I don't have any experi

Hard Code Markdown Images

I am just making a general markdown page to share a design guide with everyone on the project. I would like to know how I can hard code the images I use into th

Understanding contour hierarchies: How to distinguish filled circle/contour and unfilled circle/contour in OpenCV?

I am unable to differentiate between the below two contours. cv2.contourArea() is giving the same value for both. Is there any function to distinguish them in P

Image.FromStream throws Parameter is not valid error only on linux

I have some Unit Tests made in .net core that checks if the file which is uploaded from angular frontend is actually resized on the backend. I have a service th

React-native <Image> onProgress event returning wrong event.nativeEvent.total in Android

I am using onProgress event of Image component from react-native to try to get the file size in bytes of the remote image (the source uses uri). In iOS everythi

File picker type image returns null flutter

I have a problem with file picker type image. when I specify the type of the file as image file the function returns null , but when I specify an other type ,it

image height coming back as 0 -- need to get the height after the image loads

I'm enlarging an image on click. I'd like to put a caption right under the image, but to do that, I have to know what the new rendered height of the image is af

Cannot delete image from aws s3 bucket

I want to delete one of the images stored in the AWS S3 bucket by express.js, but I am facing an issue. Below is the code I have written const imageurl=req.user

nine-patch Image vs regular Bitmap Image

Different between nine-patch Image vs regular Bitmap Image in Android. and where we use nine-patch Image and where we use regular Bitmap Image.

How to detect corners of a square with Python OpenCV?

In the image below, I am using OpenCV harris corner detector to detect only the corners for the squares (and the smaller squares within the outer squares). Howe